alaTest has collected and analyzed 14 user reviews of One All KF111 1-Cup Personal Coffee Maker from Amazon.com. The average user rating for this product is 4.7/5, compared to an average user rating of 3.8/5 for other products in the same category on Amazon.com. People really like the durability and performance. The maintenance and usability also get good comments. Reviews about the reliability and size are mixed, and many are less positive about the capacity.